Job time recorder system



E. B. JACKSON JOB TVIME RECORDER SYSTEM Filed Sept. 24, 1932 [NVENTJA 64 (5M m Patented May 12 1936 UNITED STATES JOB TIME RECORDER SYSTEM Edward B. Jackson, Downers Grove, Ill., assignor to Stromberg Electric Company,

Chicago, 11].,

a corporation of Delaware Application September 24, 1932, Serial No. 634,685

3 Claims.

My invention relates to time-controlled means for operating secondary apparatuses of different characteristics. More specifically, it relates to means for operating job time recorders on the same circuit, some of which recorders operate continuously and others of which must stop operating during certain non-working periods.

At the present time, it is the usual practice, where continuous operating recorders and noncontinuous operating recorders are to be used in the same system, to install a double wiring system, that is, to install circuits for the recorders that operate continuously and other circuits for the recorders that are to suspend operation during the non-working periods.

My improved method of operation makes it possible to operate both types of recorders on the same circuit so that only one set of circuits needs to be installed to take care of both types of recorders. This materially reduces the expense of installation. Another advantage is in the case where a user has a system of secondary clocks, time stamps and attendant recorders in stalled and it is desired to add to the system job time recorders which suspend operation during non-working periods. The use of my method makes it unnecessary to install new circuits as the job time recorders can be used with the existing circuits. This elimination of the necessity of installing additional circuits means a substantial saving in installation expense.

Further objects of the invention will be apparent from the description and claims.

In the drawing, in which my invention is illustrated:

Figure 1 is a diagrammatic View showing my invention in connection with an impulse system in which both continuous operating recorders and non-continuous operating recorders are used. The system makes use of a master clock which may be of any suitable type for sending out regularly recurring impulses, making use of the nec essary relays and of a program instrument and current-reversing relay. The current-reversing relay or switch is the only additional piece of master control equipment required in my improved system, since all the other equipment would be required in a system which did not embody the present invention.

Referring to the drawing in detail, the system shown comprises control apparatus l, secondary apparatus 2, intended to operate continuously, and other secondary apparatus 3 intended to suspend operation during non-working periods.

The control apparatus shown comprises a circuit relay 4 of any suitable type for sending minute impulses for the secondary apparatuses, a program instrument 5 which at the beginning of a non-working period reverses the direction of the impulses and at the end of the nonworking period again reverses the direction to cause the sending of normal impulses, and pole changing apparatus 6 controlled by the program apparatus 5 and operating in conjunction therewith to effect the current reversal described.

The secondary apparatuses 2 and 3 as shown on the drawing are of conventional type, are merely used by way of illustration and of themselves form no part of my invention. Secondary apparatus 3 is a diagrammatic illustration of a recorder comprising the usual operating magnet l5, the armature lever l6 controlled thereby and having mounted thereon the pawl I! which engages the ratchet wheel I8 to efiect step by step advance thereof responsive to operations of the impulse magnet IS. The ratchet wheel I8 is mounted on shaft l9 which, through suitable gearing (not shown), operates the type wheels in train. Secondary apparatus 2 diagrammatically represents an impulse secondary clock comprising an impulse magnet 2| which drives the hands 26 of the clock step by step by means of the usual ratchet and pawl construction including armature lever 22, pawl 23 mounted thereon, and ratchet wheel 24 mounted on shaft 25 and engaged by the pawl 23.

The branch circuits 1 for the suspended operation recorders are each provided with a oneway electric valve 8 which will permit the passage of normal impulses to cause the recorder 3 to advance but which will block the passage of the reverse impulses which are sent out during non-working periods, thus suspending the operation of the secondary apparatus 3 during the non-working .periOd.

Each of the suspended operation recorders may be provided with a valve in the case where each of these recorders has its own branch circuit. In the event that there are several suspended operation recorders on a single branch circuit, a single one-Way valve may be provided to take care of this entire branch circuit.

The pole changing apparatus 6 in the control system may be of any usual or suitable type comprising an electromagnet 9, the circuit for which is controlled by the program instrument 5 and a pair of contact armatures I0 cooperating with the four contacts ll, [2, l3 and 14, leading from the power supply.

The operation of the system is as follows:

Let it be assumed that the suspended operation recorders are to suspend operation from 12:00 oclock noon to 12:30 P. M., which is the usual half-hour lunch period; that they are also to suspend operation from 6:00 P. M. to 6:30 P. M. for the half-hour supper period, and that another hour is to be eliminated from the cycle just before the beginning of the next working day, for example, from 7:00 A. M. to 8:00 A. M. To carry out this program of suspended operation, the

program apparatus 5 is arranged so that at 12:00 oclock noon the circuit connections will be reversed so that the impulses sent out will be blocked with respect to the non-continuous recorders 3. This condition is continued until 12:30 P. M. when the program instrument again reverses the current connections rendering the succeeding impulses efiective on all of the recorders 2 and 3. In a similar manner a current reversal is eiTected at 6:00 P. M. and again at 6:30 P. M. to suspend the operation of the non-continuous recorders 3 for this period. Again at 7:00 A. M. the current is reversed and the operation suspended until 8:00 A. M. when the program instrument 5 again causes current reversal to effect the sending of normal impulses until 12:00 oclock noon. The continuous recorders are, of course, operative no matter in what direction the impulse comes, as they are not provided with the one-Way valves 8.

It will be seen that this system makes it possible to carry both types of recorders on the same circuit so that only one circuit is necessary for both types of recorders. It Will also be seen that in case a user has already installed a system of secondary clocks, time stamps, etc., and it is desired to add job time recorders of the suspended type, it will not be necessary to install new circuits.

Further modifications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the prior art and the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a time controlled system, secondary apparatus including continuously operating apparatus and suspend operation job time recorders connected to the same control circuit, a master apparatus having means for transmitting regular periodic impulses over said circuit to operate all of said secondary apparatus, means in said master apparatus for reversing the direction of the impulses during certain non-working periods in accordance with a predetermined schedule, and means including a one way valve in each of said job time recorders for suspending the operation of such recorders only during said non-working periods.

2. A time-controlled system comprising master electrical impulse sending apparatus and secondary impulse receiving apparatuses, said master apparatus comprising time-controlled means for periodically reversing the direction of the impulses sent, and said secondary apparatuses comprising apparatus including an electromagnet and mechanism advanced step by step thereby responsive to both direct and reverse impulses and other apparatus including an electromagnet and mechanism advanced step by step thereby responsive only to impulses in one direction, said last mentioned apparatus being provided with a one-way electrical valve.

3. A time-controlled system comprising master electrical impulse sending apparatus and secondary impulse receiving apparatuses, said master apparatus comprising means including a timecontroled pole changer for periodically reversing, the direction of the impulses sent, and said secondary apparatuses comprising apparatus including an electromagnet and mechanism advanced thereby responsive to both direct and reverse inrpulses and other apparatus including an e1ectromagnet and mechanism advanced thereby re- Cir sponsive only to impulses in one direction, said last mentioned apparatus being provided with a one-way electrical valve.

EDWARD B. JACKSON. 

